Taxicab numbers: Difference between revisions
m
→{{header|Haskell}}: (Rearranged pretty-printing to occupy less vertical space on the code page)
(→{{header|Haskell}}: (added a bit of pretty-printing)) |
m (→{{header|Haskell}}: (Rearranged pretty-printing to occupy less vertical space on the code page)) |
||
Line 1,177:
import Data.Ord (comparing)
-- TAXICAB NUMBERS ----------------------------------------------------
taxis :: Int -> [[(Int, ((Int, Int), (Int, Int)))]]
taxis nCubes =
Line 1,187 ⟶ 1,188:
, y <- t ]
-- Taxicab numbers
xs :: [(Int, [(Int, ((Int, Int), (Int, Int)))])]
xs = zip [1 ..] (taxis 1200)
-- PRETTY PRINTING ----------------------------------------------------
taxiRow :: (Int, [(Int, ((Int, Int), (Int, Int)))]) -> [String]
taxiRow (n, [(a, ((axc, axr), (ayc, ayr))), (b, ((bxc, bxr), (byc, byr)))]) =
[show n, ". ", show a, eq, op, show axr, cb, leq, show axc, cl] ++
[ad, op, show ayr, cb, leq, show ayc, cl, or, op, show bxr, cb] ++
[leq, show bxc, cl, ad, op, show byr, cb, leq, show byc, cl]
where
cb = "^3"
Line 1,235 ⟶ 1,207:
cl = ")"
-- OUTPUT -------------------------------------------------------------
main :: IO ()
main =
Line 1,243 ⟶ 1,216:
let w = maximum (length <$> col)
in (justifyRight w ' ' <$> col)) <$>
transpose (taxiRow <$> (take 25 xs ++ take
where
justifyRight n c s = drop (length s) (replicate n c ++ s)</lang>
| |||